Demountable rim for automobile-wheels.



W. E. COPITHORN.

DEMOUNTABLE RIM FOR AUTOMOBILE WHEELS.

APPLICATION men mi. N), m3. 1,160,977. Patented Nov. 16, 1915.

w. E. CIOPITHOR/N.

DEMOUNTABLE RIM FOR AUTOMOBILE WHEELS. APPLICATION FILED FEB. 10. 1913.

1 16 977. I Patented Nov-16, 1915.

s SHEETSSHEET 2. I

W. E. COPITHORN.

DEMOUNTABLE RIM FOR AUTOMOBILE WHEELS.

APPLICATION FILED FEB. 10, I913- I QW.

3 SHEETS-SHEET 3- a IMF-1'. 7 I E A 4 Patented Nov. 16, 1915.

h ring; Fig. 7 is aside view of a wheel partly To all whom, it may concern: 3

WALTER E. ,corrrn'onn, or netting, massnicnus'n'rrs.

. Be it known that Iy-VVALTEB E. (lo'PI- RN; a. citizen ofthe United States, ;residing at Natick, county of Middlesex, State of Massachusetts, have invented an Improvement fin Demountable Rims for AutomobileWheels, of which the following description, in connection with the accompanying drawing, is a specification, lilze characters oni the. drawing representing llke parts.

'This'invention relates to quick-detachablev tires and demountable rims for automobiles. Some-embodiments of-the invention will first be described and then the novel features thereof will be pointed out in the appended claim.

Figure 1 is a side view of a wheel showing a difi'erent embodiment of the invention; Fig. 2 is an enlarged section on the line y1 Fig. 1; Fig. 3 is a fragmentary perspective view of the locking ring; Fig. 4- is' a section taken on substantially the line a-a, Fig. 3; Fig. 5 shows the locking ring removed; Fig. 6 is a detail of the locking in section showing a diiferent embodiment of my invention; Fig. 8 is an enlarged sectionon the line 6-1), Fig. 7; Fig. 9 is a section on the line cc, Fig. 8; Fig. 10 is a section on the line (Zd, Fig. 8; Fig. 11 is a fragmentary view of the spacing ring; Fig. 12 shows a device for permitting a straight-faced tire to be used in a clencher rim; Fig. 13 is a detail of the filling ring shown in Fig. 11; Fig. 145 is a side View of a wheel showing a still different embodiment of my invention; Fig. 15 is an enlarged section on the line f-f, Fig. 1 4:; Fig. 16 is an enlarged section on the line gg, Fig. 14; Fig. 17 is a section on the line h-h, Fig. 14. 1 1 designates a wheel having the usual felly 2, and 3 designates the tire which is illustrated as a pneumatic tire. This tire is sustained by, a demountable rim which is herein shown as divided circumferentially into two parts that are held together in a novel manner. The felly 2 has a felly band 140 encircling it which is provided at one edge with the positioning flange 24 .to re ceive one side of the demountable rim and at the other side said felly band is provided with the grooved extension 25.

The demountable rim is madeinto' two sections 26, each of which is formed with a clencher flange 27 The two sections 26 are I nnnonnrannn sin: son nu'i'o'monrLn-yvnnms'Kj 'fi pecineatioii of Letters Patent.

r Patented Nov. is, iota.

4 Application filediFeTorueiy 10, 1913. I Serial No. 747,2?3. I

rovided tithe; meeting edges with the inwardly-directed flanges or lips 28, and

said sections are held together b a locking rmg29 which has a general 5 shape in cross-section. Th s lock-mg ring is herein shown as made in three se.ct1ons,- there being a central section 30 and two-end sections 31. 3

These sections are pivotally connected together, as shown at 32, and-means are provided for expanding the ring after it is in place thereby to firmly hold the parts in position. The end of'each of the end sections 31 is provided with a bevel face 33 and one of the sections has a screw-threaded stud 34: extending therefrom on which is mounted a cone nut 35 that is adapted to engage the beveled surfaces 33.

In assembling the parts the two demountable rim sections 26 are placed together with the tire 3 between them and the locking ring 29 is then placed over the flanges 28. The factthat'the sections of the locking ring are hinged together permits the sections 31 to be swung inwardlyto thereby reduce the diameter of the lockmg rlng sufiiciently to permit it to be swung overthe flanges 28. When the locking ring is in position the nut 35 is screwed up tight thereby expanding the locking ring until it fits the interior of the demountable rim.

The locking ring is thus firmly held in sition and it holds the two sections of the demountable rim in place. The demountable rim thus assembled can then be placed on the felly band 140, and it is held there by a suitable positioning member. in the construction shown in Fig. 8 this positioning member is a two-part ring, each part having a plurality of inclined teeth 37 extending from each edge thereof. These teeth 37 fit into notches 38 and 39 formed in the felly band 140, and the demountable rim, respectively, the notches in the felly band preferably being situated in the extension 25. One of the parts of the positioning member 36 has a screw-threadedstud 40 extending therefrom at one end, and on this stud is screw-threaded a cone-shaped nut 41 which is adapted to engage an inclined face 42 formed on the other part of the positioning ring. The two parts of the posiieo tioning ring are set into place and by tight-' able rim. It should be remarked that. the teeth 37 on the two parts of the lock ng member are faced in opposite dlI'GCtlOIlS.

This member 36 when in position serves to space the demountablerrm from the felly band and to ,also hold 1t against lateral.

shown in F igs..1, 2. and 3.

In Figs. 12 and 13 I have shown a filling ring which is adapted to be used to convert the clencher rim into one adapted to receive a straight-faced tire. This filling ring is designated by 44 and it is made with the two outer fiat faces. 45 and 46, and the inner curved face 47, it thus having a sort of triangular shapein cross section. It is a split ring and the two ends thereof are connected by a link 48 which extends through a slot 480 in one member. This construction allows the ring to expand or contract as necessary to fit the rim, and

when the filling ringis in place the flat side's 44, 45, face outward andthe rounded face 47 faces inwardly and engages the tire The flat faces 44- and 45. not only provide room for the link 48,- but they also provide a construction whereby the ring will readily F find a true bearing against the clencher ring.

In Figs. 14 and I have shown a different embodiment of'the' invention. In thisconstruction the demountabl'e rim has the two-part construction showninFigs. l, and 3, but the demountable rim is locked in place bya locking ri'ng comprising the two sections 7 0,- each having the slots 71 therein that are adapted to fit over the heads '72 of bolts or studs 73' carried by the rim. The

heads of the bolts have tapering beaks or noses 74 behmdwhich the locking ring sections 70 enter, as shown in Fig. 16. The

twoadjacent ends ofthe locking ring sections 70 are engaged behind the head 75 of a stud 76, and the two locking ring sectlo'ns 70 are held in place by a cone nut 77 which screws onto a stud carried by the they are forced apart at the end where the cone is situated, thus causing the narrow ends of the slots 71 to enter behind the heads 72. The tapering faces 74 of the heads causesthe locking rings to hug the felly tightly. i

In Fig. 15 the exterior face of-the felly 2 is made on an incline and the felly band 14 is also tapered. The advantage of this construction is. that when the demountable rim is in place it will have bearing onthe upturned portion 24 of the felly band and the locking ring 29also has bearing against the inclined face of the felly band- 14.

Having fully described my invention,

what I claim as new and desire to secure by Letters Patent is In a device of the class described, the combinationwith a rim divided into two parts, each part having an inturned flange, of a sectional locking ring U-shape in cross section and adapted to embrace said two flanges, the sections of the locking ring be ing pivoted togetheigand .a cone member cooperating with said locking ring to ex;

pand it into firm' engagement with the rim. In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses;

WALTER E. COPITHORN. Witnesses:

' BERTHA F. HEUSER, Louis C. SMITH. 

